US5408535A - Video test strip reader and method for evaluating test strips - Google Patents
Video test strip reader and method for evaluating test strips Download PDFInfo
- Publication number
- US5408535A US5408535A US08/117,782 US11778293A US5408535A US 5408535 A US5408535 A US 5408535A US 11778293 A US11778293 A US 11778293A US 5408535 A US5408535 A US 5408535A
- Authority
- US
- United States
- Prior art keywords
- test
- test strip
- image
- processor
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/8483—Investigating reagent band
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N2021/1765—Method using an image detector and processing of image signal
- G01N2021/177—Detector of the video camera type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00029—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor provided with flat sample substrates, e.g. slides
- G01N2035/00099—Characterised by type of test elements
- G01N2035/00108—Test strips, e.g. paper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/11—Automated chemical analysis
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Closed-Circuit Television Systems (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Description
THRESHOLD=AVERAGE+C * STANDARD DEVIATION,
Claims (59)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/117,782 US5408535A (en) | 1993-09-07 | 1993-09-07 | Video test strip reader and method for evaluating test strips |
AU70327/94A AU661945B2 (en) | 1993-09-07 | 1994-08-17 | Video test strip reader and method for evaluating test strips |
DE69433317T DE69433317T2 (en) | 1993-09-07 | 1994-08-25 | Video test strip reader and method for evaluating test strips |
AT94113313T ATE254279T1 (en) | 1993-09-07 | 1994-08-25 | VIDEO TEST STRIP READER AND METHOD FOR ASSESSING TEST STRIPS |
EP94113313A EP0646784B1 (en) | 1993-09-07 | 1994-08-25 | Video test strip reader and method for evaluating test strips |
CA002130970A CA2130970A1 (en) | 1993-09-07 | 1994-08-26 | Video test strip reader and method for evaluating test strips |
JP21280294A JP3628727B2 (en) | 1993-09-07 | 1994-09-06 | Video test strip reader and test strip evaluation method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/117,782 US5408535A (en) | 1993-09-07 | 1993-09-07 | Video test strip reader and method for evaluating test strips |
Publications (1)
Publication Number | Publication Date |
---|---|
US5408535A true US5408535A (en) | 1995-04-18 |
Family
ID=22374786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/117,782 Expired - Lifetime US5408535A (en) | 1993-09-07 | 1993-09-07 | Video test strip reader and method for evaluating test strips |
Country Status (7)
Country | Link |
---|---|
US (1) | US5408535A (en) |
EP (1) | EP0646784B1 (en) |
JP (1) | JP3628727B2 (en) |
AT (1) | ATE254279T1 (en) |
AU (1) | AU661945B2 (en) |
CA (1) | CA2130970A1 (en) |
DE (1) | DE69433317T2 (en) |
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JP3628727B2 (en) | 2005-03-16 |
JPH07190940A (en) | 1995-07-28 |
AU7032794A (en) | 1995-04-13 |
CA2130970A1 (en) | 1995-03-08 |
ATE254279T1 (en) | 2003-11-15 |
EP0646784B1 (en) | 2003-11-12 |
AU661945B2 (en) | 1995-08-10 |
DE69433317T2 (en) | 2004-08-19 |
DE69433317D1 (en) | 2003-12-18 |
EP0646784A1 (en) | 1995-04-05 |
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